bug in asm-ppc/div64.h

[Bastien Nocera]

Hello,

While chasing a date bug in smbfs with Urban Widmark, it so happened
that we stumbled across a bug in do_div on PPC 32bit, ie. it doesn't
work.

I attached a test case, provided by Urban. do_div is used in quite a few
places like vsprintf, the matrox fb code, etc.

When running on x86:
now: 1047238073
adjusted: 24edd64059e100
/ 10000000: 3df4e80a
1039460362

Check the run on PPC. It's wrong by quite a scale.

Any ideas on how to solve this properly ?

Cheers

--
/Bastien Nocera
http://www.redhat.com

Perfection is reached, not when there is no longer anything to add, but
when there is no longer anything to take away.
                                                Antoine de Saint-Exupery
--
/Bastien Nocera
http://hadess.net

#2  0x4205a2cc in printf ("Oh my %s\n", preferred_deity) from
/lib/i686/libc.so.6 printf ("Oh my %s\n", preferred_deity);
Segmentation fault
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